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Effect of fluorine carriers on crops and drainage waters

Journal Article · · Ind. Eng. Chem.; (United States)
DOI:https://doi.org/10.1021/ie50500a033· OSTI ID:5887954
Because of the increased use of fluoric materials as insecticides and as fertilizers, and because of the distinctive reactivities of various fluoric materials after their incorporation into soils, it seemed imperative to determine the effects that incorporations of various solid carriers exert upon fluorine content in vegetation and in drainage waters. Until experimental inputs were at rates far greater than those to be expected in practice, no carrier induced significant enhancement in the fluorine content of either crops or drainage waters. The fluorine of rock phosphate was virtually inert. Incorporated at abnormal rate, sodium combinations yielded fluorine leachings beyond those that passed from magnesium fluoride and cumulative inputs of sodium proved more harmful to soil structure. Rational-rate incorporations of fluorides of sodium and magnesium, and cryolite, can be used without adverse effect upon plant growth, upon uptake of fluorine, and without causing harmful concentration of fluorides in the soil drainage. Those effects hold in particular for incorporations of rock phosphate, without restriction as to rates. In making heavy-rate incorporations for insecticidal effects in the soil, it was demonstrated that the several industrial fluorides possess distinctive properties that should govern choice, quantity, and mode of input.
Research Organization:
Univ. of Tennessee Agricultural Experiment Station, Knoxville
OSTI ID:
5887954
Journal Information:
Ind. Eng. Chem.; (United States), Journal Name: Ind. Eng. Chem.; (United States) Vol. 43:8; ISSN IECHA
Country of Publication:
United States
Language:
English